Resilient vehicle-wheel.



M. MATHIESEN. RESILIENT VEHICLE WHEEL. APPLICATION FILED MAR. 19, 1912.

1 034,475, Patented Aug. 6, 1912.

UNITED STATESl PATEN T OFFICE.

MARIUS MATHIESEN, OE SAN ANTONIO, TEXAS. i

RnsILIEN'r VEHICLE-WHEEL.

To all whom it 'may concern.:l

Be it known that .I, Mame-s MA'rHlnsEN, a citizen of the United States of America, residing at San Antonio, in the county of vBexar and State of Texas, have invented Improvements in of which the fol- `Wheel comprising nmer and outer portions,

together with spring plungers supportin the inner and outer portions of the whee with relation to each other.

The wheel further comprises yieldingly supported plungers carried by the inner portion of the Wheel and capable of a limited movement longitudinally of the outer portion of the whee said limited longitudinal movement being resisted by the action of spring buifers, as hereinafter described.

Further objects and advantages of t-he invention will be set forth in the detailed description which now follows.l

In the accompanying drawing Figure 1 is a View partly in side elevation and partly in section of a portion of a wheel constructed in accordance with the invention. Fig. 2 is a transverse vertical section through one of the driving plungers, and Fig. 3 is a like view through one of the supporting 4 plungers.

Like numeralsdesignate corresponding parts in all of the figures of the drawing.

Referring to the drawing, the numeral 5 designates an annular felly portion having the plates 6 secured to its opposite sides and carrying a' rim 7 of the usual and well known construction. Upon' its inner periphery this felly carries an annular track 8, and the felly is supported in spaced re- .lation to the inner portion 9 of the wheel by plungers 10, normally forcedoutward by springs 11, said plungers carrying rollers 12'that travel upon the track way 8. The inner portion 9 of the wheel is provided with a plurality of bearing4 sleeves 13, in which springs 14 are located. Driving plungers 15 bear upon these springs and said driving portions are bifurcated attheir outer ends to straddle the track 8. The upper ends of the driving plungers carry pivot pins 16 which travel in guideways 17 formed in the side Walls of the tube 18. Disposed in the outer end portions of the tube are springs 19 which bear against bearing Specication of Letters Patent.

character are used as Patented Aug. 6, 1912.

Application filed March 19, 1912. Serial No. 684,705.

blocks 20 and against which bearing blocks anl enlargedportion of pivot pins 16 thrust.

It will, therefore, be seen that the present device comprises means for yieldingly supporting the inner portion of the wheel from the outer ting a limited rolling movement of one of these portions with relation to the other to thereby permit a yielding thrust of the driving plungers l5 against the outer portions of'the. wheel. When wheels of this driving wheels, this results in the starting of the vehicle without the sudden jerks and jars that would be present if these parts were rigidly connected.' The sudden starting of motor vehicles when the driving wheels thereof are thrown into gear with thee 'hard on the tires and it is desirable to re'- lieve -this strain on the tires as much as possible.

From the foregoing description it will be seen that simple and efficient means vare herein provided for accomplishing the objects of the invention, but while the elements shown and described, are well adapted to serve the purposes for which they are intended it is to be understood that the' invention is not limited to the precise, construction set forth, but includes within its purview such changes as may be made with- 1n' the scope of the appended claims.

Having described my invention, what I claim is l 1. In a device of the character described, the combination with an inner portion, an annular felly portion surrounding the inner portion and spaced therefrom, a tube disposed longitudinally in said felly portion and having its'side walls cut away to form guideways, a Vpivot pin traveling in said guideways, springslocated in said tube, bearing blocks against which said springs bear, said bearing blocks in turn bearing against said pivot pin, adriving plunger engaging with said pivot pin, said-driving plunger being slidably disposed in the inner portion of the wheel, a spring normally tending to force said plunger outwardly, an annular trackway portion, an additional spring pressed lun'- gercarried by the inner portion o the wheel and a roller carried by said spring pressedv plunger which has rolli en a ement with said trackway. ng g g 2. In a device of the character described,

portion of the wheel for permitngme is very v carried by the felly i the combination with an inner portion, of an annular felly portion surrounding the inner portion and spaced therefrom, a tube dis osed longitudinally in said felly portion an having its side Walls out away to form guideways, a pivot pin traveling in said guideways, springs located in said tubeone upon each side of said pivot pin andvbearing thereagainst, a driving plunger engaged with said pivot pin, said driving plunger being slidably and radially disposed in the inner portion of the wheel, a spring normall tending to force said plunger outwar y, an annular trackway carried by the felly portion, an additional spring pressed Copies of this patent may be obtained for plunger Carried by t-he inner portion of the -MARIUS MATHIESEN. y

Whee

Witnesses:

` C. W.BUHLER,

R. J. Dom.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C. Y 

